Employed Wage and Salary Workers Represented by Unions, 2005

Occupation	Percent of workers
Professional and related	20.7%
Production, transportation, and material moving	19.1
Natural resources, construction, and maintenance	17.3
Management, business, and financial operations	5.9
Service	12.6
Sales and office	8.2

Industry	Percent of workers
Public sector	40.5%
Transportation and utilities	25.1
Information	14.4
Construction	13.8
Manufacturing	13.7
Mining	9.5
Education and health services	9.4

Source: U.S. Bureau of Labor Statistics. Web: stats.bls.gov/cps/cpsaat42.pdf.

Labor Unions

Union Membership, by States

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